Boston Half Marathon course.

1. 01

   Run the Rollers Even

   The 200 m of climbing comes in constant rollers, not one hill. Run by effort, letting pace rise on the descents and fall on the climbs instead of forcing flat splits.

   From the elevation profile

2. 02

   Park Paths, Not Roads

   The course winds through the Emerald Necklace — the Arnold Arboretum, Jamaica Pond, and Olmsted Park. Expect shaded, narrower park paths rather than wide city streets, so settle your position before turns.

   From the description

3. 03

   Dress for 7.5°C

   Typical race-day temperature is 7.5°C, so layer for a cold start. The rolling terrain will warm you quickly; plan to unzip or shed early rather than overheating.

   From the temperature

4. 04

   Expect a Deep Field

   This is described as a highly competitive race. Mid-pack runners should resist chasing the early pace, since the constant elevation changes punish anyone who starts too hard.

   From the description

Written by AI from the course data. Check race-day details with the organizer.